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Home / Farm Tractors / John Deere Tractors / JD 6620 Premium

John Deere 6620 Premium Tractor

The John Deere 6620 Premium is a 6020 series 4x4 utility tractor. This model was manufactured from 2001 to 2006. The John Deere 6620 tractor is powered by 414.4 cubic inches John Deere 6068T 4V-CR 4-stroke 6-cylinder turbocharged diesel engine with a maximum power of 130 Hp (96.9 kilowatt) and 535 Nm (396 lb-ft) of peak torque at 1700 rpm.

The John Deere 6620 Premium is equipped with 3 types of transmission. Type 1: 24x24 PowrQuad Plus partial powershift transmission. Type 2: 24x24 AutoQuad transmission.

Type 3: AutoPowr variable transmission (IVT) with infinite forward and reverse gears. Maximum travel speed (forward and reverse): 25 mph (40 km/h). The closed center hydraulic system with load-sensing control has an axial-piston or gear-driven pump with a rated capacity of 25.4 gpm (96.1 lpm). The main relief pressure is 300 bar (2900 psi). The John Deere 6620 Premium is fitted with 420/70R28 front tires and 18.4R38 rear tires. The wheel base is 104.3" (2640 mm). The tractor is compatible with a John Deere 661 loader with a maximum lift height of 166 (4220), or John Deere 731 loader with a lift capacity at full height of 4255 lb (1930 kg).

Engine
Engine Model John Deere 6068T 4V-CR
Engine Type 4-Stroke, 6-cylinder turbocharged diesel
Number of Cylinders 6
Displacement, cu in (L) 414.4 (6.80)
Engine Bore, in (mm) 4.19 (106.0)
Engine Stroke, in (mm) 5.00 (127.0)
Aspiration Turbocharged
Rated Engine Power, hp (kW) 130.0 (96.9)
Rated Engine Speed, rpm 2300
Operating Speed Range, rpm 1300-2300
Idle Speed Range, rpm 845-2510
Maximum Torque, Nm (ft-lbs) 535 (396)
Torque Speed, rpm 1700
Compression 17:1
Firing Order 1-5-3-6-2-4
Fuel System Electronic high-pressure common rail
Air Cleaner Dual paper elements
Fuel Tank Capacity, gal (L) 54.7 (207.0)
Oil Capacity, qts (L) 20.8 (19.5)
Coolant Capacity, qts (L) 25.5 (24.0)
Electrical System Rating, Volts 12
Charging System Alternator
Alternator Rating, Amps 115/150

Power Take-Off
PTO Operational Type Independent
PTO Horsepower, hp (kW) 113.0 (83.7)
PTO Clutch Electro-hydraulic
PTO Speed, rpm 540/540E/1000
Rear PTO / Engine Speed, rpm 540/2143
Rear PTO / Engine Speed, rpm 540E/1684
Rear PTO / Engine Speed, rpm 1000/2208
Front PTO / Engine Speed, rpm 1000/2185

Standard Transmission
Transmission Type PowrQuad Plus
Gearbox Type 24F/24R, partial powershift
Number of Forward Gears 24
Number of Reverse Gears 24
Clutch Type Mechanical/hydraulic
Oil Capacity, qts (L) 55.0 (52.0)
Maximum Forward Speed, mph (kph) 25.0 (40.0)
Maximum Reverse Speed, mph (kph) 25.0 (40.0)

Optional Transmission
Transmission Type AutoQuad
Gearbox Type 24F/24R
Number of Forward Gears 24
Number of Reverse Gears 24
Clutch Type Electro-hydraulic
Oil Capacity, qts (L) 55.0 (52.0)
Maximum Forward Speed, mph (kph) 25.0 (40.0)
Maximum Reverse Speed, mph (kph) 25.0 (40.0)


Optional Transmission
Transmission Type AutoPowr IVT
Gearbox Type Infinitely Variable Transmission (IVT)
Number of Forward/Reverse Gears Infinite forward and reverse
Oil Capacity, qts (L) 63.5 (60.0)
Maximum Forward Speed, mph (kph) 25.0 (40.2)
Maximum Reverse Speed, mph (kph) 25.0 (40.2)

Wheels and Tires
Drive Wheels 4WD 4x4
Steering Configuration Front Steer
Steering System Hydrostatic power
Brakes Type Hydraulic wet disc
Front Tire Size 420/70R28
Rear Tire Size 18.4R38

Hydraulic System
Hydraulic System Type Closed-center with load-sensing control
Hydraulic Pump Type Axial-piston or gear-driven pump
Implement Pump Flow, gpm (Lpm) 25.4 (96.1)
Hydraulic Pressure, bar (psi) 200 (2900)
3-Point Hitch Category 2/3N
Draft Sensing or Lift Control Electronic lower link draft control
Standard Lift Capacity at lift pin, lb (kg) 16360 (7420)

Dimensions and Weight
Wheelbase, in (mm) 104.3 (2640)
Length, in (mm) 186.1 (4720)
Height, in (mm) 112.5 (2850)
Overall Width, in (mm) 91.2 (2310)
Ground Clearance, in (mm) 20.5 (520)
Front Axle Load, lb (kg) 9040 (4100)
Rear Axle Load, lb (kg) 15210 (6900)
Weight (Shipping), lb (kg) 11775 (5340)
Weight (Maximum), lb (kg) 20950 (9500)

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